NumberNormalizer

This gem can help you to extract and normalize numbers from a piece of free text.

Extraction

• Numbers expressed as digits in forms of eg.
  • 1000000
  • 1 000 000
  • 1 120 123.12
• Numbers expressed as plain words, eg.
  • two hundred and four million one hundred ninety-five thousand --> 204195000
  • Note: currently it supports English only.

Normalization

• Currently it will normalize all numbers to digits (Integer or Float).

Add this line to your application's Gemfile:

gem 'number_normalizer'

And then execute:

$ bundle

Or install it yourself as:

$ gem install number_normalizer

t = "The area is 10 123 456 square meters. The population is 1 300 000 000."
n = NumberNormalizer.new t
puts n.digit_numbers  # [10123456, 1300000000]

t = "There are two hundred million five thousand people."
n = NumberNormalizer.new t
puts n.digit_numbers  # [200005000]

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Bug reports and pull requests are welcome on GitHub at https://github.com/dandanwei/number_normalizer. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.

The gem is available as open source under the terms of the MIT License.